FGFR2 has been found to be amplified and overexpressed in the colon cancer cell line H716 (13). We found that ponatinib potently inhibited the growth of H716 cells with a GI50 value of 7 nmol/L but did not affect the growth of Colo205 cells (430 nmol/L; Fig. 5D) that lack constitutive FGFR2 phosphorylation...